Amgen Inc.
Amgen Inc. (AMGN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AMGN · as of Sep 30, 2025
Ownership Breakdown
2,922
Institutional Holders
▼ 35 vs Q2
$119.27B
Total Inst. Value
▼ $1.21B vs Q2
539.71M
Shares Outstanding
freeFloat 99.77%
422.76M
13F Shares Held
▼ 9.72M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AMGN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC biological products, (no diagnostic substances) | 53.88M | 10.01% | 10.01% | $15.20T | Nov 7, 2025 | ▲ 165.3K |
BLACKROCK, INC. biological products, (no diagnostic substances) | 46.03M | 8.56% | 8.56% | $12.99T | Nov 12, 2025 | ▼ 563.9K |
STATE STREET CORP biological products, (no diagnostic substances) | 29.30M | 5.45% | 5.45% | $8.27T | Nov 14, 2025 | ▼ 52.9K |
CAPITAL INTERNATIONAL INVESTORS biological products, (no diagnostic substances) | 19.19M | 3.57% | 3.57% | $5.41T | Nov 13, 2025 | ▲ 282.2K |
CAPITAL WORLD INVESTORS biological products, (no diagnostic substances) | 18.80M | 3.49% | 3.49% | $5.30T | Nov 13, 2025 | ▲ 1.94M |
MORGAN STANLEY biological products, (no diagnostic substances) | 15.91M | 2.96% | 2.96% | $4.49T | May 27, 2026 | ▼ 274.3K |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC biological products, (no diagnostic substances) | 13.55M | 2.52% | 2.52% | $3.82T | Nov 10, 2025 | ▲ 656.9K |
GEODE CAPITAL MANAGEMENT, LLC biological products, (no diagnostic substances) | 13.27M | 2.47% | 2.47% | $3.73T | Nov 12, 2025 | ▲ 248.9K |
PRIMECAP MANAGEMENT CO/CA/ biological products, (no diagnostic substances) | 9.71M | 1.80% | 1.80% | $2.74T | Nov 12, 2025 | ▼ 924.1K |
WELLS FARGO & COMPANY/MN biological products, (no diagnostic substances) | 7.16M | 1.33% | 1.33% | $2.02T | Nov 13, 2025 | ▼ 153.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+7.02M shares0
New Positions
first time holders25
Decreased
−6.89M shares0
Sold Out
fully exitedNet shares change (top 50)
+134.3K
+7.02M / −6.89M
Net new holders
-1
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AMGN insider trading · insider activity
Source: SEC Form 4
36
Buy transactions
43
Sell transactions
0.84
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
MILES AMY E director | May 19, 2026 | Award | 665 | — | — | 5.6K | Form 4 ↗ |
Kullman Ellen Jamison director | May 19, 2026 | Award | 665 | — | — | 14.5K | Form 4 ↗ |
Klotman Mary E. director | May 19, 2026 | Award | 665 | — | — | 2.2K | Form 4 ↗ |
Jacks Tyler director | May 19, 2026 | Award | 665 | — | — | 18.3K | Form 4 ↗ |
ISHRAK OMAR director | May 19, 2026 | Award | 665 | — | — | 7.4K | Form 4 ↗ |
HOLLEY CHARLES M director | May 19, 2026 | Award | 665 | — | — | 12.8K | Form 4 ↗ |
Garland Greg C. director | May 19, 2026 | Award | 665 | — | — | 13.8K | Form 4 ↗ |
ECKERT ROBERT director | May 19, 2026 | Award | 665 | — | — | 26.3K | Form 4 ↗ |
Druker Brian director | May 19, 2026 | Award | 665 | — | — | 8.4K | Form 4 ↗ |
Drake Michael V director | May 19, 2026 | Award | 665 | — | — | 5.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Amgen Inc. (AMGN) is primarily owned by institutional investors, who hold approximately 78.3% of total shares outstanding. Company insiders own approximately 0.23%, while retail and public investors account for the remaining 21.44%.
The largest institutional shareholder of Amgen Inc. is VANGUARD GROUP INC, holding approximately 53.88 million shares — equal to 10.01% of outstanding shares — as of September 30, 2025.
A total of 2,922 institutional investors currently hold AMGN stock, with a combined institutional value of approximately $119.27 billion as of the most recent 13F filing period.
Frequently asked questions
AMGN ownershipAmgen Inc. (AMGN) is primarily owned by institutional investors, who hold approximately 78.3% of shares. The largest shareholder is VANGUARD GROUP INC with a 10.01% stake. Company insiders hold 0.23%. Data sourced from SEC Form 13F as of September 30, 2025.